Machine for filling flasks for founding



July 28; 1931. w, P|PER 1,816,612"

MACHINE FOR FILLING FLASKS FOR FOUNDING Filed June 7, 1929 4 Sheets-Shet .1

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July 28, 1931. w. F. PIPER 1,

MACHINE FOR FILLING FLASKS FOR.FOUNDING Filed June '7, l92 9 4 Sheets-Sheet 2 W @0372? 4212.44 4%. if M I Patented July 28, 1931 UNITED STATES PATENT OFFICE WALTER F. PIPER, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE BEARDSLEY & PIPER I COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS MACHINE FOR FILLING FLASKS FOR FOUNDING Application filed June 7,

. .5 ming sand into flasks.

sand from which the One object of the invention is to provide an equipment of this type which is designed particularly for use in foundries wherein suffi cient floor space is not available for a pile of projector can be supplied.

Another object of the invention is to provide an equipment of the character hereunder consideration in which the projector is supported so that it can travel along a wall of the moulding room of the foundry and is adapted to receive sand continuously from an overhead conveyor.

A further object of the invention isthe provision of improved means for supplying sand from the conveyor to the projector.

A still further object of the invention is the provision of an improved truck or carriage on which the projector is mounted.

Other objects of the invention and the vanous advantages and characteristics of the present equipment will be apparent from a consideration of the following detailed description. V

The invention consists in the several novel features hereinafter set forth and more particularly defined by claims at the conclusion hereof. I r p a In the drawings which accompany and form a part of this specification or disclosure and in which like numerals of reference denote corresponding parts throughout the several views: Fig. 1 is a side elevation of an equipment embodying the invention. Fig. 2 is a plan of the device for delivering sand from the overhead conveyor tothe sand projector. Fig. 3 is a front elevation of the equipment. Fig. 4 is a transverse section taken on the line 1-4 of Fig. 3. Fig. 5 is a rear elevation of the sandfeeding mechanism that is mounted on the truck. Fig. 6 is a horizontal'section taken on the line 66 of Fig. 7 Fig. 7 is a rear-elevation of the lower portion of the truck. 1

The equipment whichv forms the subject 1929. Serial No. 365,082.

matter of this invention is adapted for use in a foundry and comprises a wheeled vertically extending frame or truck. The latter is built up of a pair of horizontal longitu-- dinally extending channel beams 11 which are spaced apart, a pair 'ofstandards 10 which are formed of I-beams and have their lower ends secured to and positioned between the beams 11, and a pair of upper longitudinal channel beams 12 which are secured to and connect rigidly the upper ends of thestandards 10. The beams 11 and 12 and the standards 10 are secured rigidly togetherso that the truck or frame is of a rigid character. A pair of supporting wheels 13 and 14 are arranged in tandem between beams 11 and are mounted on axles 15 which are journalled in and, extend. through the aforesaid beams. These wheels are adapted to run on a single rail 16 which is laid in or supported onv or near. the moulding room floor; The rail 1611s preferably positioned in close proximity to one of the side walls of the moulding room, so that the truck may travel longitudinally from one end of the moulding room to the other. Vertical axles 17 are fixedly secured to theouter sides of standards 10 respectively, adjacent their upper ends and wheels 18 are journalled on said axles. The peripheries ofsaid wheels are adapted torun on the inner face of a channel beam 19 which extends longitudinally from end to end of the mouldingroom,

and serves as a thrust, rail for maintaining the truck in a vertical plane. Beam 19 .is secured by brackets'20 to overhanging bars 21 which are secured to columns 22. The latter are permanently supported in the moulding room adjacent a wall thereof. The truck is propelled longitudinally of the wall to bring the flasks within reach of a sand projector on the truck; by mechanism com prising an electric motor 23 and .reduction gearing. The latter consists of a worm 25 which is mounted on the shaft of motor 23 and is housed in a case 24'; a gear 26 which is driven by said worm; a sprocket-wheel 27 which is disposed at one side of case 24 and is driven by gear 26; a sprocket-chain 28 which is driven by sprocket-wheel 27; a

sprocket wheel 29- which is fixed to rotate the supporting Wheel 13; a sprocket wheel 30 which is disposed at the other side of case 24 and, like the sprocket-Wheel27, is driven by gear 26; a sprocket-chain 31 which is driven by sprocket wheel 30, and a spr'oclket wheel 32 which is fixed to rotate supporting wheel 14. Motor 23 and gear-case 24 are mounted upon a bed or bracket 33 which is secured? to one'of the standards-10.

The said: projector is mounted'so that it is bodily movable with the truck and hence may be shifted to fill flasks throughout the length of the moulding room floor. The supporting structure for the projector comprises a horizontalplate 34, plate metal brackets 35,..a'longi tudina1' angle bar 36' which eX- t'endslbetween and is secured tothe standards l0;,', a longitudinal reinforcing angleba'r 37 fwihihis located: under plate 34, and reinforcinglcerner bars-38 between brackets plate 3.4. The projector comprises a cas 40.:eontaining high speed rotary projector-blade (not shown) for slinging sand iiitosubjacent flasks; an arm 41, on which casing 40 is fixed an electric motor 42 for driving the blade, mounted on and movable v with'said arm 1; an endless belt 41 mounted onthe arm and driven-by said motor, for con tiiiuously' supplying. sand to the projector casing a vertically swinging. jib 43 pivoted atv 44 to, a: horizontally rotatable sleeve 45, and. com-posed ofan inner member 46 and an outer member47 which is pivoted'to the outer-end of. the inner member to permit relative vertical pivotal movement between the membersin raising: and lowering the casingAO'andi arm 41; a post 48 fixed on plate 34 of the truck, and around which sleeve issupported for horizontal rotation; an endliesseonveyor 49. for delivering, sand from a hopper 51 into a chute 52 over belt 53 and supported arm'41 and an electric motor 54 onjiblmember-43, for operating. gearing ina case. 55,. for raising and lowering the jib. Arm4l is pivoted at 56 to" swing horizontallyfrelatively to the vertically adjustablejiblmember. 47. The outer end of conveyor belt. 49 is supported by armsv 57v fixed to a'bracket 58 which is rigid with jib member 7 4,7, andthe. inner end ofbelt is suppottedgby, a case. 59 -w'hich contains gearing for driving said belt. Rods 60', which are pivoted to'ja, pivotrbra cket 58 t'o which jibe in fiiliber isfixed, and to sleeve 45, consti tute,'wlth jibmember 43, a parallel linkage for maintaining the horizontality ofijibmember 47,, arm 41 and the projector-head carried. thereby. The construction and operation of, the mechanism for raising and lowering-the projector and feeding sand the'r etoare fully set forth in an application for. Letters Batei t. of the United Statesfiled Est,'1;3,L1e2 ,s rra1 No; 88.014,- and. the construetion an d' operation of theprojector-head are more fully set forth in Patent No. 1,667,097, to which reference may be had for a more detailed description thereof.

The equipment thus far described exemplifies a truck which is adapted to travel the length of a moulding room and adjacent a wall of, or a series of fixed columns in, the room, and a projector which is mounted on thetruck, and in which the projector-head is movablehorizontally toslingsand into all portions of *subjacent flasks, and is adjustable mechanism. This belt receives sand from any'suitable source of supply, and its upper reach is-intermediately supported by rollers;

63, and its lower reach by rollers 64. The conveyor is supported by a structure which comprises longitudinalbeams which are fixed to beams or arms 21 which project outwardly from columns 22, and cross-bars 671 which are fixed to beams 65. Brackets 58 for carrying rollers 63 and brackets for carrying rollers 64, are mounted on bars 67.

Mechanism for delivering sand from the belt 60 into ahopper 51 over the jib-member:

43 comprises an'inclined deflector or sweep which is mounted to travel with the truck, and is adapted to discharge sand from the top reach of the belt to thefront side thereof. A hopper 72, movable withthe truck and sweep 7 1,jis adapted to receive the. sand as it is discharged from the belt 60 by the sweep 71. Adefiector, for directing the sand discharged laterally from the belt 60 by sweep -71 into the hopper 72, comprises-a vertical .wall 71 and an inclined wall 71".

This cleflector is also'supported to travel. with hopper 72 and the sweep. Vings 71 are provided to confine'the sanddischarged from; belt 60 to the deflector 71, 71". Thetopreach of an endless slat conveyor 73 underlies or forms the bottom of the "hopper 72, and is carried by a driven pulley 75 and-an idler-pulley 74. This c0nveyor'73 discharges the sand into the hopper-51 as it passes around pulley 75. A gate 76, is slidably mounted on the side of hopper 72above conveyor 7.3 and pulley 75, to regulate the volume of sand dischargedf from the hopper 7-2 and delivered into the hopper 57. Said gate is vertically slidable in guides 81, and a bolt 82, extending through a slot 83 in a bar 84 fixedto the gate,

is adapted to secure the gate in its assigned position by raising and lowering the gate. Thefgapmnder the lower-endtof the gate may be varied to vary corres ondingly the volume of sand delivered to t e projector. Conveyor 7 3 is continuously driven by mechanism comprising an electric motor 77 and enclosed worm gear reduction 78, a pinion 79 driven by said reduction, and a gear 80 fixed to the shaft of pulley 75. The mechanism for delivering sand from belt 60 into hopper52 of the projector is supported on the truck by a structure comprising a pair of channel beams 86 which are fixed to the standards 10 and project forwardly therefrom; a pair of lon gitudinal beams 87 fixedly secured on top of beams 86 and angle bars 88 fixed to beams 87, to which the front and back of the hopper 72 are fixedly secured. Pulley 75 is journalled in bearings 7 5 fixed to beams 87, and pulley 74.- is mounted inbearings 74 which are slidably adjustable in ways 74 to permit the conveyor 7 3 to be tightened. The deflector 71, 71 is supported from the hopper by brackets 89, the lower ends of which are fixed to the sides ofsaid hopper. The sweep 71 is pivotally supported at 90 in the upper ends of brackets 89, and is provided with a forwardly projecting arm 91, to which a cord.

92 is attached so that the sweep may be lifted off the belt 60 to discontinue the discharge of sand from the belt when desired. An angle iron bar 93 cross connects the upper ends of brackets 89. This exemplifies mechanism which is movable longitudinally with the truck, for discharging sand from the supply belt into a hopper from which the sand is fed in regulated quantityto the projector.

In some instances, it is desiredto utilize the truck to transport flasks or in inverting them to placethe matestogether, preparatory to pouring the metal into the moulds. For this purpose, a crane is mounted on one of the standards 10, so that it will travel with the truck. This crane comprises a boom 95 of channel iron, on which a wheeled hoisting device 97 is adapted to travel, and a mast 98,

to which the boom is fixedly secured. The 1 mast 98 is pivotally connectedby bolts-99 to one of the standards 10 of the truck. Bolts 99 extend through pivot lugs 100 which are fixed to the mast 98 and through brackets 101 which are fixed to the front of column ,10. The boom may be swung horizontally to bring the hoisting device 97 over the load to be handled.

The operation of the equipment will be as follows: Supply belt-60 will becontinuously operated to deliver sand from the source of supply, and since it extends throughout the length of the moulding room, it provides an available supply to the projector throughout its range of travel between the ends of the room. The sweep 71 discharges the sand laterally from belt 60 against deflector 71*, so the sand will be discharged downwardly into the hopper 72. The sweep, being movable over the belt 60, is adapted to eflect this dis charge in-all positions of the truck. The

supplied, despite any variations in the delivery of the sand by the belt 60 and sweep 71 during the movements of the truck, such as may occur when the truck is being driven toward or from the delivery end of feed belt 60. From hopper 72, the sand is discharged in regulated quantity under control of gate 76, into the hopper 51, from which the sandis delivered into the projector head by belt 49 on the jib and'belt 41 on the arm. The verticalaxis, about whichthe jib swings, is disposed below the point of discharge of the sand from conveyor 73, so that the jib may be manually shifted from the side without interrupting the sand feed. The pivotal connections for the jib 43 and the armil permit the projector-head to be moved horizontally so that the sand will be projectedat a high rate of speed directly into all portions of the flasks, and the jib may be adjusted to raise or lower the projector head, as more fully set forth in the aforesaid application No. 88,014 filed Feb. 13, 1926. The truck, during the operation of the projector, may be propelled by motor 23, so that themachine will move lengthwise of the moulding room, and between flasks without interrupting the projection of sand into the flasks and without interrupting the sand delivery from the overhead sand supply belt 60 to the projector The invention exemplifies an equipment which may be supported along the wall of a moulding r-oom or-a series of columnstherein and thereby leaves the maximum space available on the moulding room floor for filling the flasks for moulding; also an equipment ineluding a sand projector, to which the sand is continuouslysupplied from an overhead sand conveyor. 3 V The invention is not to be understood as restricted to the details set forth, since these I may be modified within the scope of the appended claims, without departing from the spirit and scope of the invention. r Having thus described the invention, what I claim as new and desire to secure by Letters Patent, is: 7 f

1. Infoundry equipment, the combination of a truck, a rail on which the truck is adapted to travel across a moulding room, overhead guide-means for holding the truck against lateral displacement, a moulding .machine mounted on and projecting from thetruck and adapted to fill flasks on the floor of the room, an overhead sand supply supported independently of the truck and extending through the traverse of said truck, and mechanism mounted (on the truck for delivering sand from the overhead supply to the mould? ing machine. 1

2. In foundry equipment, thecombination of a truck, a rail on which the truck is adapted to travel acrossa mouldingroom, overhead guide means for holding the carriage against lateral displacement, a moulding machine mounted on and projecting from the truck and adapted to fill flasks on the floor of the room, mechanism for propelling the truck comprising'a motor mounted on the latter, an overhead sand supply supported independently of the truck and extending throughout the traverse of said truck,-and

'mechanism mounted on the truck for deliveroverhead sand supply supported independently of the truck and extending throughout the traverse of said truck, and mechanism mounted onthe truck for delivering sand from the overhead supply to the moulding machine.

In foundry equipment, the combination of atruck comprising a vertically extending frame and a pair of Wheels in tandem, ,a single rail onwhich the wheels travel, an overhead rail for guiding the upper end of the frame, a moulding machine mounted on the truck and projecting therefrom, an overhead-sand supply supported independently of the truck and extending through the traverse of'sa'id' truck, and mechanism mounted on the truck for delivering sand from the overhead supply to the moulding machine'.

5. In foundry equipment,the combination of a truck comprising a pair of longitudinal beams, supporting Wheels arranged in tandem between said beams, standards secured to saidbeams, and lateral thrust wheels at the upper ends of the standards, a floor rail on which the supporting Wheels travel, an

overhead rail on which the thrust wheels ride, a'moulding machine mounted on the truck, an overhead sand supply supported independently of the truck and extending through the traverse of said truck, and mechanism 7 mounted on the truck for delivering sand extending throughout the traverse of said truelg and mechanism mounted on the truck for delivering sand from the overhead supply to the projector. I

7. In foundry equipment, the combination of a truck adapted to travel along a moulding room, a rail for said truck, a stationary overhead track for guiding thetruck laterally, a moulding machine mounted on the truck and projecting from one side of the truck to fill flasks on the floor of the room, an overhead sand supply supported independently of the truck and extending throughout the traverse of said truck, and mechanism mounted on the truck for delivering sand from an overhead supply to the moulding machine.-

8. In foundry equipment, the combination of a truck adapted to travel along a moulding room, a rail for said'truck, a stationary overhead thrust track for guiding the truck laterally, a moulding machine mounted on the of an overheadbelt for conveying a supply of sand over a moulding room, a vertically ex- 7 te'ndingtruck adapted to travel in the moulding room longitudinally of the belt,overhea'd means for guiding the truck laterally, a moulding machine mounted on the truck and projecting therefrom to fill flasks on the floor of the room, and means" for delivering sand from the belt to the moulding machine throughout the traverse of the truck.

10. In foundry equipment, the combination' of an overhead belt for conveying a supply of sand over a moulding room, a vertically extending truck adapted to travel on a rail in the room and longitudinally of the belt, overhead means for guiding the. truck laterally, a moulding machine mounted on the truck'andcomprising a rotary sand projector movable relatively to the truck, and means for delivering sand from the belt to the projector throughout the traverse of the truck. p v

11. I In foundry equipment, the combination of an endless overhead conveyor mounted to supply sand over a moulding room, a vertically extending truck adapted to travel on a" rail and longitudinally of the conveyor,a moulding machine mounted on and'movable with the truck, and. mechanism movable with the truck for delivering sand from the conveyor to the moulding machine throughout the traverse of the truck, comprisinga sweep'to discharge the sand'from saidconveyor.

12. In foundry equipment, the combination of an endless overhead'conveyor mounted to supply sand-over a moulding room, a ver tically extending truck adapted to travel on a rail and longitudinally of the conveyor, a moulding machine mounted on and movable with the truck, and mechanism movable With the truck for delivering sand from the conveyor to the moulding machine throughout the traverse of the carriage, comprising a sweep, movable into and out of position to discharge sand from the conveyor.

13. In foundry equipment, the combination of a truck adapted to travel on a rail along a moulding room, a moulding machine comprising a rotary sand projector mounted on the truck so it may be moved horizontally relatively thereto, an overhead sand conveyor supported independently of the truck and extended throughout the traverse of the truck, and mechanism mounted on the truck for delivering sand from the conveyor to the projector, comprising a sweep to discharge the sand from said conveyor.

14. In foundry equipment, the combina tion of a truck adapted to travel on a rail along a moulding room, a moulding machine comprising a rotary sand projector mounted on the truck so it may be moved horizontally relatively to the truck, an overhead sand conveyor supported independently of the thereto, an overhead sand conveyor supported independently of the truck and extending throughout the traverse of the truck, means for discharging sand from the conveyor, and

,means for delivering the sand from the discharge means to the projector comprising a hopper fixed on the truck, and an endless belt beneath the hopper.

18. In foundry equipment, the combination of a truck adapted to travel along a moulding room, a moulding machine comprising a rotary sand projector mounted on the truck so it may be moved horizontally relatively thereto, an overhead sand conveyor supported independently of the truck and extending throughout the traverse of the truck, means for discharging sand from the conveyor, a hopper mounted on the truck beneath the conveyor, a deflector to direct the sand discharged from the conveyor to the hopper, and an endless belt mounted on the truck under the hopper, for delivering sand from the hopper to the projector.

Signed at Chicago, Illinois, this 19th day of October, 1928.

WALTER F. PIPER.

truck and extending throughout the traverse of the truck, and mechanism mounted on the truck for delivering sand from the conveyor to the projector, comprising a sweep to discharge the sand from said conveyor, and a hopper positioned under and adapted to receive the sand from the sweep.v

15. In foundry equipment, the combination of a truck adapted to travel along a mould ing room, a moulding machine comprising a rotary sand projector mounted on the truck so it may be moved horizontally relatively to the truck, an overhead sand conveyor supported independently of the truck and extending throughout the traverse of the truck, means for discharging sand from the conveyor, and an endless conveyor mounted on the truck and adapted to receive sand from the discharging means and to deliver it to the moulding machine.

16. In foundry equipment, the combination V w of a truck adapted to travel along a moulding room, a moulding machine comprising a rotary sand projector mounted on the truck so it may be moved horizontally relatively thereto, an overhead sand conveyor supported independently of the truck and extending throughout the traverse of said truck, means for discharging sand from the conveyor, and controllable means mounted on the truck, for delivering the sand from the discharge means to the moulding machine.

17. In foundry equipment, the combination of a truck adapted to travel along a moulding room, a moulding machine comprising a rotary sand projector mounted on the truck .1 so it may be moved horizontally relatively 

